TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 4, 7:10 PM EST
Polymarket
In the upcoming MLB game between the Tampa Bay Rays and Houston Astros, scheduled for July 4 at 7:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays is winning the game at the conclusion of the 5th inning. This market will resolve to "Houston Astros" if the Houston Astros is winning the game at the conclusion of the 5th inning. If the game is tied at the conclusion of the 5th inning, this market will resolve to "Draw". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
In the upcoming MLB game between the Tampa Bay Rays and Houston Astros, scheduled for July 4 at 7:10 PM ET: This market will resolve to "Tampa Bay Rays" if the Tampa Bay Rays is winning the game at the conclusion of the 5th inning. This market will resolve to "Houston Astros" if the Houston Astros is winning the game at the conclusion of the 5th inning. If the game is tied at the conclusion of the 5th inning, this market will resolve to "Draw". If the game is postponed, this market will remain open until the 5th inning has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. To know when a postponed game will be played, please check the home team's schedule on MLB.com for the listed team and look for the game described as a makeup game. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
Prediction market odds and traditional sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by trader belief and real-money conviction. Prediction markets can sometimes price outcomes more accurately over time because participants have direct financial exposure to accuracy. However, sportsbooks may move faster on breaking news due to professional risk management. Comparing the two can reveal where public opinion and professional oddsmakers disagree on this matchup's early-inning dynamics.
On Polymarket, this market is priced through an automated market maker mechanism where traders buy and sell shares representing each outcome. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the cumulative trades and liquidity provided by the market. As traders adjust their positions based on new information—such as starting pitcher performance or weather updates—the odds shift in real time. Shares are fractional, allowing precise position sizing. Settlement occurs after the event concludes, and winning shares are redeemed at full value while losing shares expire worthless.
Several catalysts can shift odds in this market before the game starts and during the first five innings. Starting pitcher announcements, recent form, and head-to-head statistics often trigger repricing as traders reassess team strength. Injury updates or late lineup changes can significantly alter expectations. Weather conditions at the stadium—wind direction, temperature, and humidity—affect ball carry and scoring potential. Early-game momentum, such as runs scored in the first or second inning, will drive substantial price movement as traders update their forecasts based on live action. Bullpen availability and recent offensive trends also influence trader positioning.